For travel I use for decades a battery shaver. So I am independent from electricity connections and bearings, regardless of the washing area. After 23 years of standing at a change of the model - and only the fact I realize what has evolved. The Braun M 90 is quiet and easy. The shaving head is also assurance of protection against accidental switching on. The small trimmer ensures everywhere that the shaving of the native is very close with a good razor.